OOF2: The Manual

Force_Balance
	6.4.4. Equations

Name

Force_Balance

The Force Balance equation is

$M_{ij}\frac{\partial^2 u_j}{\partial t^2} + C_{ij}\frac{\partial u_j}{\partial t} + \nabla_j\cdot\sigma_{ij} - f_i = 0$

(6.120)

where $\bf u$ is the Displacement Field, $M$ is the mass density tensor, $\bf C$ is a damping coefficient, $\sigma$ is the stress tensor and $f$ is an external force density vector.


Plane_Heat_Flux		Plane_Stress